📄 基于模糊控制的自动发电控制.htm
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<P class=MsoPlainText><B style="mso-bidi-font-weight: normal">文章编号：</B><SPAN
lang=EN-US>1009-0193(2003)01-0049-05</SPAN></P>
<P class=1>基于模糊控制的自动发电控制</P>
<P class=MsoPlainText style="TEXT-ALIGN: center" align=center><SPAN
style="FONT-SIZE: 14pt; FONT-FAMILY: 楷体_GB2312; mso-bidi-font-size: 10.5pt">赵<SPAN
lang=EN-US><SPAN style="mso-spacerun: yes">
</SPAN>菁，彭慧敏，谢维廉<o:p></o:p></SPAN></SPAN></P>
<P class=MsoPlainText style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US
style="FONT-FAMILY: 楷体_GB2312">(贵州工业大学电气工程学院，贵州 贵阳<SPAN
style="mso-spacerun: yes"> </SPAN>550003)<o:p></o:p></SPAN></P>
<P class=MsoPlainText><B>摘<SPAN lang=EN-US><SPAN
style="mso-spacerun: yes"> </SPAN>要：</SPAN></B><SPAN
style="FONT-FAMILY: 楷体_GB2312">为更好地跟踪电力系统负荷变化，将模糊技术引入自动发电控制<SPAN
lang=EN-US>(AGC)，区别于传统的AGC中的比例积分（PI）控制，从已有的运行经验中提取归纳出经验规则，并用相关的模糊逻辑构建一个AGC的模糊控制器。仿真结果表明，用模糊控制器实现的AGC，其控制性能优于传统的比例积分控制。</SPAN></SPAN></P>
<P class=MsoPlainText><B>关键词：</B><SPAN
style="FONT-FAMILY: 楷体_GB2312">自动发电控制（<SPAN
lang=EN-US>AGC）；模糊控制；电力系统</SPAN></SPAN></P>
<P class=MsoPlainText><B style="mso-bidi-font-weight: normal">中图分类号：</B><SPAN
lang=EN-US>TP273.4；TM761<SPAN
style="mso-spacerun: yes">
</SPAN><B style="mso-bidi-font-weight: normal">文献标识码：</B>A</SPAN></P>
<P class=MsoPlainText><SPAN
lang=EN-US><![if !supportEmptyParas]><![endif]> <o:p></o:p></SPAN></P>
<P class=2><SPAN lang=EN-US>0<SPAN style="mso-spacerun: yes">
</SPAN>引<SPAN style="mso-spacerun: yes"> </SPAN>言</SPAN></P>
<P class=MsoPlainText
style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt">自动发电控制应用于电力系统中使总的发电量跟踪负荷变化、调整频率偏差为零和改变发电量来维持区域间净交换功率为恒定值。常规的自动发电控制（<SPAN
lang=EN-US>AGC）是一个比例积分（PI）控制调节过程，即根据控制系统频率和区域净交换功率或两者之一与目标的差值构成区域控制误差后按比例积分式计算进行控制。比例积分控制是建立在完善的理论基础之上的，应用成果也非常丰富，但它需要建立比较精确的数学模型。本文尝试将一种新的控制技术——模糊
( Fuzzy )
控制应用于AGC.模糊自动控制是一种非线性智能控制，相对于经典控制理论和现代控制理论来说，它无须知道被控对象（或生产过程）的精确数学模型，而是根据经验控制行为，遵循反馈及反馈控制思想，总结成一系列条件语句，即控制规则，运用微机的程序来实现这些控制规则。而电力系统本身是一个含有众多约束条件的非线性系统，难于用精确的某个数学模型来描述某种状态，并且在已进行的AGC控制中积累了大量的数据和经验，将这些数据和经验量化为控制手段时，模糊控制是一个比较好的选择；同时，模糊控制不仅根据误差还根据误差的变化来调整，能较好地避免超调、欠调现象——特别是对出现拐点时能改善控制性能。仿真结果证明了应用模糊控制进行AGC的有效性。</SPAN></P>
<P class=MsoPlainText><SPAN
lang=EN-US><![if !supportEmptyParas]><![endif]> <o:p></o:p></SPAN></P>
<P class=2><SPAN lang=EN-US>1<SPAN style="mso-spacerun: yes">
</SPAN>传统的AGC</SPAN></P>
<P class=MsoPlainText
style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt">区域控制误差<SPAN
lang=EN-US>ACE（Area Control Error）反映了电力系统供需实时平衡关系的计算结果，它每隔一定周期被计算一次。</SPAN></P>
<P class=MsoPlainText style="TEXT-ALIGN: center" align=center><SPAN
lang=EN-US>ACE=βΔf+ΔP<SUB>T</SUB></SPAN></P>
<P class=MsoPlainText
style="TEXT-INDENT: 21pt; mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt">β<SPAN
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